6 Bible Verses about Oaths, Divine

When God gave his promise to Abraham, since there was no one greater by whom he could swear, he swore by himself. His words were-- 'I will assuredly bless thee and increase thy numbers.'

Men, of course, swear by what is greater than themselves, and with them an oath is accepted as putting a matter beyond all dispute. And therefore God, in his desire to show, with unmistakable plainness, to those who were to enter on the enjoyment of what he had promised, the unchangeableness of his purpose, bound himself with an oath. For he intended us to find great encouragement in these two unchangeable things, which make it impossible for God to prove false--we, I mean, who fled for safety where we might lay hold on the hope set before us.

Showing mercy to our forefathers, And mindful of his sacred Covenant. This was the oath which he swore to our forefather Abraham--

David, then, Prophet as he was, knowing that God 'had solemnly sworn to him to set one of his descendants upon his throne,' looked into the future,

for that is the meaning of the declaration-- 'Thou art for all time a priest of the order of Melchizedek.' On the one hand, we have the abolition of a previous regulation as being both inefficient and useless (for the Law never brought anything to perfection); and, on the other hand, we have the introduction of a better hope, which enables us to draw near to God.read more.
Then again, the appointment of this new priest was ratified by an oath, which is not so with the Levitical priests, but his appointment was ratified by an oath, when God said to him-- 'The Lord has sworn, and will not change, "Thou art a priest for all time."' And the oath shows the corresponding superiority of the Covenant of which Jesus is appointed the surety. Again, new Levitical priests are continually being appointed, because death prevents their remaining in office; but Jesus remains for all time, and therefore the priesthood that he holds is never liable to pass to another. And that is why he is able to save perfectly those who come to God through him, living for ever, as he does, to intercede of their behalf. This was the High Priest that we needed--holy, innocent, spotless, withdrawn from sinners, exalted above the highest Heaven, one who has no need to offer sacrifices daily as those High Priests have, first for their own sins, and then for those of the People. For this he did once and for all, when he offered himself as the sacrifice. The Law appoints as High Priests men who are liable to infirmity, but the words of God's oath, which was later than the Law, name the Son as, for all time, the perfect Priest.

Therefore I was sorely vexed with that generation, And I said-- "Their hearts are always straying; They have never learned my ways"; While in my wrath I swore-- "They shall never enter upon my Rest."'